Optics Express· 2017Q1
Single-photon three-dimensional imaging at up to 10 kilometers range
- 367citations
- Q1SCImago
- 2017year
Short summary
A single-photon avalanche diode (SPAD) detector system achieved 3D imaging and depth profiling of targets up to 10.5 km away using a 1550 nm pulsed laser.
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Key points
- Demonstrated 3D imaging and depth profiling up to 10.5 km using single-photon counting.
- System employs a 1550 nm pulsed laser and an InGaAs/InP SPAD detector.
- Acquisition time per pixel reduced by at least 10x with total variation restoration algorithm.
- Reconstructed kilometer-range depth profiles with average signal returns < 1 photon/pixel.
AI-generated from the title and abstract; the full text is not read.
Abstract
Depth and intensity profiling of targets at a range of up to 10 km is demonstrated using time-of-flight time-correlated single-photon counting technique. The system comprised a pulsed laser source at 1550 nm wavelength, a monostatic scanning transceiver and a single-element InGaAs/InP single-photon avalanche diode (SPAD) detector. High-resolution three-dimensional images of various targets acquired over ranges between 800 metres and 10.5 km demonstrate long-range depth and intensity profiling, feature extraction and the potential for target recognition. Using a total variation restoration optimization algorithm, the acquisition time necessary for each pixel could be reduced by at least a factor of ten compared to a pixel-wise image processing approach. Kilometer range depth profiles are reconstructed with average signal returns of less than one photon per pixel.
The authors' abstract, as published at the source. Optics Express, 2017 · DOI ↗
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Field: Instrumentation
InstrumentationPhysics and Astronomy